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#include <llmr/shader/icon_shader.hpp>
#include <llmr/shader/shaders.hpp>
#include <llmr/platform/gl.hpp>
#include <cstdio>
using namespace llmr;
IconShader::IconShader()
: Shader(
shaders[ICON_SHADER].vertex,
shaders[ICON_SHADER].fragment
) {
if (!valid) {
fprintf(stderr, "invalid icon shader\n");
return;
}
a_pos = glGetAttribLocation(program, "a_pos");
a_tex = glGetAttribLocation(program, "a_tex");
u_matrix = glGetUniformLocation(program, "u_matrix");
u_color = glGetUniformLocation(program, "u_color");
u_size = glGetUniformLocation(program, "u_size");
u_ratio = glGetUniformLocation(program, "u_ratio");
u_dimension = glGetUniformLocation(program, "u_dimension");
// fprintf(stderr, "IconShader:\n");
// fprintf(stderr, " - u_matrix: %d\n", u_matrix);
// fprintf(stderr, " - u_color: %d\n", u_color);
// fprintf(stderr, " - u_size: %d\n", u_size);
// fprintf(stderr, " - u_ratio: %d\n", u_ratio);
// fprintf(stderr, " - u_dimension: %d\n", u_dimension);
// fprintf(stderr, " - u_image: %d\n", u_image);
}
void IconShader::bind(char *offset) {
glEnableVertexAttribArray(a_pos);
glVertexAttribPointer(a_pos, 2, GL_SHORT, false, 8, offset);
glEnableVertexAttribArray(a_tex);
glVertexAttribPointer(a_tex, 2, GL_UNSIGNED_SHORT, false, 8, offset + 4);
}
void IconShader::setImage(int32_t new_image) {
if (image != new_image) {
glUniform1i(u_image, new_image);
image = new_image;
}
}
void IconShader::setColor(const std::array<float, 4>& new_color) {
if (color != new_color) {
glUniform4fv(u_color, 1, new_color.data());
color = new_color;
}
}
void IconShader::setSize(float new_size) {
if (size != new_size) {
glUniform1f(u_size, new_size);
size = new_size;
}
}
void IconShader::setRatio(float new_ratio) {
if (ratio != new_ratio) {
glUniform1f(u_ratio, new_ratio);
ratio = new_ratio;
}
}
void IconShader::setDimension(const std::array<float, 2>& new_dimension) {
if (dimension != new_dimension) {
glUniform2fv(u_dimension, 1, new_dimension.data());
dimension = new_dimension;
}
}
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